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StateMachineGenerator: Pass output file as an argument

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This allows us to avoid shell redirection to create output files, and
will help with the GN build.
This commit is contained in:
Andrew Kaster 2023-07-26 07:13:07 -06:00 committed by Andrew Kaster
parent f87a488b22
commit f8e1544f41
Notes: sideshowbarker 2024-07-17 00:27:16 +09:00 
Author: https://github.com/ADKaster
Commit: https://github.com/SerenityOS/serenity/commit/f8e1544f41
Pull-request: https://github.com/SerenityOS/serenity/pull/20209
2 changed files with 11 additions and 5 deletions
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2
Meta/CMake/code_generators.cmake
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@ -69,7 +69,7 @@ function(generate_state_machine source header)
set(output ${CMAKE_CURRENT_BINARY_DIR}/${header})
add_custom_command(
OUTPUT ${output}
COMMAND $<TARGET_FILE:Lagom::StateMachineGenerator> ${source} > ${output}.tmp
COMMAND $<TARGET_FILE:Lagom::StateMachineGenerator> ${source} -o ${output}.tmp
COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${output}.tmp ${output}
COMMAND "${CMAKE_COMMAND}" -E remove ${output}.tmp
VERBATIM

14
Meta/Lagom/Tools/CodeGenerators/StateMachineGenerator/main.cpp
View File

@ -216,10 +216,15 @@ void output_header(StateMachine const&, SourceGenerator&);
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
Core::ArgsParser args_parser;
StringView path;
args_parser.add_positional_argument(path, "Path to parser description", "input", Core::ArgsParser::Required::Yes);
args_parser.parse(arguments);
StringView output_file = "-"sv;
Core::ArgsParser parser;
parser.add_positional_argument(path, "Path to parser description", "input", Core::ArgsParser::Required::Yes);
parser.add_option(output_file, "Place to write file", "output", 'o', "output-file");
parser.parse(arguments);
auto output = TRY(Core::File::open_file_or_standard_stream(output_file, Core::File::OpenMode::Write));
auto file = TRY(Core::File::open(path, Core::File::OpenMode::Read));
auto content = TRY(file->read_until_eof());
@ -228,7 +233,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
StringBuilder builder;
SourceGenerator generator { builder };
output_header(*state_machine, generator);
outln("{}", generator.as_string_view());
TRY(output->write_until_depleted(generator.as_string_view().bytes()));
return 0;
}